Commit bbf0d3fdf25e8f85c7751ac0ee90a0f50a0f054d

Bruno Haible 2023-04-01T14:51:22

vasnwprintf-posix: Fix behaviour in the C locale. * lib/vasnprintf.c (VASNPRINTF): If NEED_WPRINTF_DIRECTIVE_C is set, implement the 'c' directive here. * m4/vasnprintf.m4 (gl_PREREQ_VASNWPRINTF): Invoke gl_MBRTOWC_C_LOCALE. If mbrtowc is buggy in the C locale, define NEED_WPRINTF_DIRECTIVE_C. * modules/vasnwprintf (Files): Add m4/mbrtowc.m4. * tests/test-vasnwprintf-posix.c (test_function): Add tests of %s and %c in the C locale. * doc/posix-functions/fwprintf.texi: Mention the C locale behaviour bug. * doc/posix-functions/swprintf.texi: Likewise. * doc/posix-functions/vfwprintf.texi: Likewise. * doc/posix-functions/vswprintf.texi: Likewise. * doc/posix-functions/vwprintf.texi: Likewise. * doc/posix-functions/wprintf.texi: Likewise.